232 Mr. J. E. Gray on the Hollow-horned Ruminants. 



bag transverse. Hoofs square, compressed. Hair thick, wavy. 

 O. saltatrix. 



Calotragus. Muffle bald. Horns elongate, acute. Tear- 

 bag transverse. Hoofs triangular. Inguinal pores and knee- 

 tufts none. C. Tragulus and C. melanotis. 



Scopophorus. Muffle bald. Horns elongate, acute. Tear- 

 bag transverse. Hoofs triangular. Knees with large tufts. In- 

 guinal pores distinct. S. Ourebi and S. montanus. 



Eleotragus. Muffle bald. Horns elongate, recurved. Tear- 

 bag none. Hoofs triangular. Inguinal pores distinct. E. Ca- 

 preolus, E. arundinaceus and E. reduncus. 



2. The Caprine Antelopes are heavy-bodied and limbed and 

 large-hoofed, with a very short depressed tail covered with hair 

 to the base, and with conical horns, rarely with a flat process in 

 front. 



Capricornis. Muffle bald. Horns recurved, ringed at the 

 base. Tear-bag large, round. C. sumatrensis, C. bubalina and 

 C. crispa. 



Nemorhedus. Muffle ovine. Horns recurved, ringed at the 

 base. Tear-bag none. N. Goral. 



Mazama. Muffle ovine. Horns nearly erect, ringed at the 

 base, recurved at the tip. Eur of two sorts. JM. americana. 



Rupicapra. Muffle ovine. Horns slender, erect, sharply re- 

 curved at the tip. Eur soft. R. Tragus. 



Antilocapra. Muffle ovine. Horns slender, erect, with a 

 flat process in front and recurved at the tip. A. americana. 



3. The Cervine Antelopes are large-sized, rather heavy-bodied 

 animals, with an elongated tail with short hairs at the base and 

 tufted at the tip. Horns elongate. 



Kobus. Muffle naked. Neck maned. Horns sublyrate, bent 

 forwards at the tip. K. ellipsiprymnus, K. Singsing and K. de- 

 fassa. 



Aigocerus. Nose cervine. Nape with a reverse mane. Horns 

 elongate, recurved, compressed. Tear-bag covered with hair. 

 A, leucophceus and A. niger. 



Oryx. Nose cervine. Nape with a reverse mane. Horns 

 elongate, cylindrical, straight or slightly arched. Tear-bag none. 

 O. Gazella, 0. Biessa and O. leucoryx. 



Addax. Nose ovine. Neck not maned. Horns elongate, 

 cylindrical, subspiral. Hoofs broad in front. A. nasomaculatus. 



II. The Antelopes of the Desert have a broad nose, and the 

 nostrils are subvalvular and lined with bristles within. 



4. The Equine Antelopes have the muffle depressed, spongy and 

 bristly, and the nostrils valvular. 



Catoblepas. C. Gnu (var. C. taurind) and C. Gorgon. 



